Features: Use chrome-plated pure copper, good-looking, high gloss, anti-scratches. Can be used for hifi speakers or speaker frame. It can be put under the speaker, or under the shock board and anti-shock frame, the sharp end point to the ground, can minimize the harmful vibration. Can eliminate the pollution between the ground and the speaker, get the pure natural sound effect. Designed with height fine-tuning balancing nut.